The present study was designed to assess the
acquisition of mand and tact responses as a result of mand or tact training. Three subjects were tauqht vocal responses corresponding to objects as requests (mands)or as labels (tacts). Responses in the untrained repertoire were also assessed. The results indicated that acquisition of a vocal mand repertoire facilitated acquisition of a vocal tact repertoire and vice versa. Implications concerning the separation of mand and tact repertoires are discussed. A technology for investigation of elementary verbal operants is presented.

The problem. This study investigated chanqinq
hospital staff's frequency of actual interactions with residents by manipulating the staff's planning estimate of interactions.
Procedure. In a hospital for the development ...

The problem. The purpose of this study was to analyze experimentally the effects on an elementary school principal's cueing technique on the number of positive and negative teacher verbalizations, and to measure the effect ...

Adult humans readily learn to respond to relations, but it is normally assumed that their ability to verbalize relations plays a critical role. To study relational learning in absence of verbalization, we developed a new ...